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.htaccess - how to force “www.” in a generic way?

... This solution works only if you want all sub-domains forwarded to www.yourdomain.com. If you only want to force www, you should update the second line to be: RewriteCond %{HTTP_HOST} ^yourdomain.com [NC] – Jared Pomranky Ma...
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Application Loader: “Cannot proceed with delivery: an existing transporter instance is currently upl

... Basically, you need to clear out the transport tokens. This can happen if you were to close out of Xcode while in the middle of submitting an app to iTunes Connect. The token files now appear in the Library/Caches/com.apple.amp.i...
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Can a foreign key be NULL and/or duplicate?

...at field must exist first in a different table (the parent table). That is all an FK is by definition. Null by definition is not a value. Null means that we do not yet know what the value is. Let me give you a real life example. Suppose you have a database that stores sales proposals. Suppose furth...
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Object.getOwnPropertyNames vs Object.keys

... There is a little difference. Object.getOwnPropertyNames(a) returns all own properties of the object a. Object.keys(a) returns all enumerable own properties. It means that if you define your object properties without making some of them enumerable: false these two methods will give you the sa...
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Git: add vs push vs commit

...the suggested way to commit is the combined git commit -a, but you can mentally add a git add to the change block to understand the flow. Lastly, the reason why push is a separate command is because of git's philosophy. git is a distributed versioning system, and your local working directory is your...
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Get Output From the logging Module in IPython Notebook

.... The functions debug(), info(), warning(), error() and critical() will call basicConfig() automatically if no handlers are defined for the root logger. This function does nothing if the root logger already has handlers configured for it. It seems like ipython notebook call basicConfig ...
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How to remove a file from version control without deleting it?

...ory. In the event you wish to remove files from the repo, BUT keep them locally on your machine then you'd use the flag above. – Greg Hilston Feb 22 '16 at 13:31 6 ...
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Visual Studio: How to break on handled exceptions?

...ad the debug menu, but no Exceptions options. i customized the menu to manually add it; the shortcut key worked either way (Ctrl+Alt+E) – Ian Boyd Sep 22 '08 at 19:40 3 ...
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Replace whitespaces with tabs in linux

...long options are mandatory for short options too. -a, --all convert all blanks, instead of just initial blanks --first-only convert only leading sequences of blanks (overrides -a) -t, --tabs=N have tabs N characters apart i...
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How do you do block comments in YAML?

...: The syntax differences are subtle and seldom arise in practice: JSON allows extended charactersets like UTF-32, YAML requires a space after separators like comma, equals, and colon while JSON does not, and some non-standard implementations of JSON extend the grammar to include Javascript's /* ...